There are a few I know of- Sense makes stainless steel coils for their V Jet tank which I have and like. Works well. Smok makes some ss as well although I’ve never used them and I do read quite a lot about bad Smok coils. The Vaporesso GT cCell ceramic is a stainless steel wire although you won’t find that information anywhere. I contacted them and they confirmed it is a ss wire and should be used in VT (TC) or TCR mode.
I’m sure there must be others but those are the ones I know of. I use the CCell coil the most in both the NRG and Cascade tank and I like it a lot. Very flavorful and long lasting for me.